have less effect

Small grants scattered across deserving causes are likely to have less effect than concentrated efforts.

分散在各处的有助于事业的小资金可能没有集中的努力来得有效。

The materials of tube for loading particles and the load height have less effect on the apparent mass burning rate.

装填药粒用的壳体材料和药粒装填高度对传火速度的影响不显著。

Modern biology theories consider that axillary dissection may have less effect on survival on part of patients with breast cancer.

乳腺癌是一种全身性疾病，腋淋巴结清除彻底与否对一部分患者生存影响不大。